Water-containing oil residue granulation, pyrolyzation and gasification device and method

Abstract

The invention discloses a water-containing oil residue granulation, pyrolyzation and gasification device and method. The device comprises a quantitative powder conveying system, a continuous oil residue conveying and feeding system, a preliminary mixing system, an oil residue modified heating and mixing system, an oil residue cooling, crushing and granulating system and a light oil recovery system. The method comprises the following steps: feeding and matching water-containing oil residues and pyrolytic powder with the continuous oil residue conveying and feeding system, the quantitative powder conveying system and the preliminary mixing system; heating and mixing the uniformly mixed material with the oil residue modified heating and mixing system; cooling the mixed material and crushing and grinding the cooled material with the oil residue cooling, crushing and granulating system and enabling fines to directly enter a reactor for a pyrolysis gasification reaction; recovering and utilizing a light oil component with the light oil recovery system. According to the device and the method, the closed circulation of the oil residues and the pyrolytic powder produced by pyrolysis gasification is achieved, so that the environmental problem is solved, and carbon-containing waste solids can be recovered and utilized; the device has obvious advantages of design, manufacturing and operation and obvious economic benefits.

Description

technical field [0001] The invention belongs to the field of energy and chemical industry, and in particular relates to a device and method for granulating and then pyrolyzing and gasifying water-containing oil residue. Background technique [0002] It is very difficult to deal with the oil residue produced in coal pyrolysis or pyrolysis-gasification process of producing coal tar with coal as raw material. Most enterprises adopt the method of storage, which brings great environmental protection risks. Therefore, it is necessary to seek a safe, Reliable, advanced, economical and suitable for coal pyrolysis or pyrolysis-gasification to produce coal tar with coal as raw material, a new process that produces oil residue characteristics and current status, and performs harmless treatment of the generated oily and water-containing waste residue, and at the same time Guaranteed to obtain certain economic benefits. [0003] The powder produced by pyrolysis and oil-containing water ...

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Problems solved by technology

[0007] 1. The coal pyrolysis or pyrolysis-gasification process of producing coal tar from coal is a continuous production process. Due to the high-viscosity physical characteristics of the oil residue, intermittent mixing makes storage of the oil residue difficult. The cost of equipment is greatly increased;

[0008] 2. The powder produced in the process of coal pyrolysis or pyrolysis-gasification to produce coal tar with coal as raw material has strong adsorption and cannot be well utilized, resulting in waste of resources and environmental pollution;

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